CN104991186A - Automobile switch on/off function automatic identification system and identification method - Google Patents
Automobile switch on/off function automatic identification system and identification method Download PDFInfo
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- CN104991186A CN104991186A CN201510408000.XA CN201510408000A CN104991186A CN 104991186 A CN104991186 A CN 104991186A CN 201510408000 A CN201510408000 A CN 201510408000A CN 104991186 A CN104991186 A CN 104991186A
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Abstract
The invention discloses an automobile switch on/off function automatic identification system and identification method. The detection system comprises a detection unit, a voltage identification unit and a display unit. The detection unit comprises a power supply VCC end and a grounding end. N parallel branches are connected between the power supply VCC end and the grounding end, wherein each branch is provided with a detection port, and voltages of the detection ports of the branches are different respectively, N being an positive integer equal to or larger than 2. The voltage identification unit collects the voltage of each detection port of the detection unit and inputs the identification result to the display unit for display. The automobile switch on/off function automatic identification system and identification method can improve switch detection identification efficiency, reduce misjudgment rate, reduce detection cost and support expansion of new products.
Description
Technical field
The present invention relates to vehicle switch and detect identification field, be specifically related to
a kind of automatic recognition system of vehicle switch on-off function and recognition methods.
Background technology
Vehicle switch is the important accessory of automobile, the detection of current domestic automobile switch mainly identifies by hand and detects, for often kind of specific circuit of switch, make corresponding circuit, identified by the pilot lamp mode such as (or sound), this identification and testing circuit cannot be expanded with general, and identification circuit and detected switch need one_to_one corresponding, and checkout equipment is various.For the switch manufacturing enterprise of specialty, switch variety is more, and it is low that manual identification and detection exist production efficiency, and labour intensity is large, and checkout equipment is many, high in cost of production defect, can not meet the needs of automobile product quantity high speed development.
Manual identify and detector switch primarily of formations such as patchcord, wiring board, pilot lamp, casings, when tested switch position is changed, carried out the on-off function of identification switch by the light on and off of pilot lamp red light or green light.
as Fig. 1shown in, when switch is in closure state, two green lights, two red lights go out; When switch is in off-state, two when reds, two green lights go out; Now, by the observation of human eye, judge the correctness of switch.And have a lot of group testing circuit for the monitor station of vehicle switch test and detect interface at present, when vehicle switch has increased pin break-make relation newly, now original monitor station then cannot realize detecting, and again need make monitor station, increases testing cost.
Summary of the invention
The object of the present invention is to provide
a kind of automatic recognition system of vehicle switch on-off function and recognition methods, solve current vehicle switch detection mode and rely on artificial judgment very much, detection efficiency is lower, and simultaneously current vehicle switch detects has larger limitation, cannot meet the detection of various switch, and then increase the problem of testing cost.
The present invention for achieving the above object, realizes by the following technical solutions:
A kind of automatic recognition system of vehicle switch on-off function, comprise detecting unit, voltage identification unit and display unit, described detecting unit comprises power supply VCC and holds and earth terminal, power supply VCC holds the branch road being connected with the parallel connection of N bar between earth terminal, every bar branch road is provided with a detection port, and the voltage of the detection port of each bar branch road is different, wherein, N be equal to, or greater than 2 positive integer;
The voltage of each detection port in described voltage identification unit acquisition testing unit, and recognition result is input to display unit shows.
In this programme, devise this part of detecting unit dexterously, detecting unit adopts the circuit structure form of the parallel connection of many branch roads, and every bar branch road is chosen a detection port, the voltage of each detection port is different.When the pin of vehicle switch to be measured is connected to after in corresponding detection port, voltage in detection port can change along with the break-make of the various functions of vehicle switch to be measured, be connected to all detection port be on the pin connecting conducting state, their port voltage is equal, can be judged quickly and accurately by voltage identification unit, whether the current break-make information detected is consistent with the break-make information of the original design of vehicle switch to be measured, if consistent, then vehicle switch to be measured is qualified, otherwise then defective.
Further, preferably, described every bar branch road comprises the resistance of two series connection, and detection port is arranged between the resistance of described two series connection.
Further, preferably, selected by described voltage identification unit, the model of chip is MC9S08DZ60MLH.
Further, preferably, the model of chip selected by described display unit is Usart GPU 26ATP.
The above-mentioned automatic recognition system of a kind of employing realizes knowing method for distinguishing, comprises the following steps:
(1) the good detecting unit of exact connect ion, voltage identification unit and display unit, each detection port correspondence of detecting unit is connected to each data acquisition port of voltage identification unit, and the display data output of voltage identification unit is connected to the data input port of display unit;
(2) each pin correspondence of vehicle switch to be measured is linked in the detection port of detecting unit;
(3) closed vehicle switch to be measured, detection port identical for voltage is judged as the pin of vehicle switch to be measured by voltage identification unit, obtains the current break-make information of vehicle switch to be measured;
(4) the break-make information of the current break-make information of vehicle switch to be measured and the original design of vehicle switch to be measured is compared, if unanimously, then illustrate that the function of this vehicle switch to be measured is normal, otherwise then illustrate that the function of this vehicle switch to be measured is abnormal.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) originally
inventionby detection system is designed to detecting unit, voltage identification unit and display unit, the detection port of detecting unit is corresponding with the pin of vehicle switch to be measured to be connected, by the break-make of vehicle switch to be measured, voltage identification unit can identify the identical detection port of voltage fast, switch pin corresponding to the detection port that these voltages are identical is the pin of UNICOM, thus current any break-make relation of energy identification switch pin, the current break-make information of switch and the break-make information of switch original design are compared, thus the quick judgement realized switch on and off correctness, and then improve the efficiency of switch detection, reduce the False Rate that human factor causes.
(2) originally
inventionthe switch of various model can being adapted to, when running into newly-designed switch, without the need to again making monitor station, reducing testing cost; On the other hand, originally
inventiononly need design one to detect interface, while eliminating a large amount of detection interface, also solve the drawback that conventional detection circuitry cannot expand new product.
Accompanying drawing explanation
fig. 1for one-piece construction of the present invention
figure;
fig. 2for the circuit structure of detecting unit of the present invention
figure.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment:
as Fig. 1shown in, the automatic recognition system of a kind of vehicle switch on-off function described in the present embodiment, comprise detecting unit, voltage identification unit and display unit, detecting unit comprises power supply VCC and holds and earth terminal, power supply VCC holds the branch road being connected with the parallel connection of N bar between earth terminal, and every bar branch road is provided with a detection port, and the voltage of the detection port of each bar branch road is different, wherein, N be equal to, or greater than 2 positive integer; The voltage of each detection port in voltage identification unit acquisition testing unit, and recognition result is input to display unit shows.
Preferably, selected by the voltage identification unit of the present embodiment, the model of chip is MC9S08DZ60MLH.
Preferably, selected by the display unit of the present embodiment, the model of chip is Usart GPU 26ATP.
The above-mentioned automatic recognition system of a kind of employing realizes knowing method for distinguishing, comprises the following steps:
(1) the good detecting unit of exact connect ion, voltage identification unit and display unit, each detection port correspondence of detecting unit is connected to each data acquisition port of voltage identification unit, and the display data output of voltage identification unit is connected to the data input port of display unit;
(2) each pin correspondence of vehicle switch to be measured is linked in the detection port of detecting unit;
(3) closed vehicle switch to be measured, detection port identical for voltage is judged as the pin of vehicle switch to be measured by voltage identification unit, obtains the current break-make information of vehicle switch to be measured;
(4) the break-make information of the current break-make information of vehicle switch to be measured and the original design of vehicle switch to be measured is compared, if unanimously, then illustrate that the function of this vehicle switch to be measured is normal, otherwise then illustrate that the function of this vehicle switch to be measured is abnormal.
Be described with a concrete example below.
as Fig. 2shown in, suppose that detecting unit has 4 branch roads, every bar branch road is provided with the resistance of two series connection, and A, B, C, D on branch road are each detection port, and the initial voltage of detection port A is V
athe initial voltage of=VCC × R5/ (R1+R5), detection port B is V
bthe initial voltage of=VCC × R6/ (R2+R6), detection port C is V
cthe initial voltage of=VCC × R7/ (R3+R7), detection port D is V
d=VCC × R8/ (R4+R8); V
a≠ V
b≠ V
c≠ V
d, when there being any detection port to have UNICOM, namely port there occurs phenomenon in parallel, and the voltage so collected in the detection port of these UNICOMs is identical.Such as, after detection port A, B are linked together, now, the current voltage of detection port A, B is respectively V
' a, V
' b, and have V
' a=V
' b, and V
' a, V
' bwith initial voltage V
a, V
b, V
c, V
dall not etc.By that analogy, switch can two pins UNICOMs simultaneously, also can three, four or multiple pin connect simultaneously.When the voltage of detection port changes, port identical for voltage will be judged as the pin of switch UNICOM by voltage identification unit, and the pinout information of UNICOM is presented at display unit, namely display unit is passed through, can be clear which pin of vehicle switch is current and be in UNICOM's state, 1 of such as switch, 2 pin UNICOMs, display unit then shows 1 and 2, then the current break-make information of switch and the break-make information of switch original design compare by operating personnel, judge the function accuracy of switch, if break-make information is consistent, then represent that switch is qualified, otherwise it is then defective.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (5)
1. the automatic recognition system of a vehicle switch on-off function, it is characterized in that: comprise detecting unit, voltage identification unit and display unit, described detecting unit comprises power supply VCC and holds and earth terminal, power supply VCC holds the branch road being connected with the parallel connection of N bar between earth terminal, every bar branch road is provided with a detection port, and the voltage of the detection port of each bar branch road is different, wherein, N be equal to, or greater than 2 positive integer;
The voltage of each detection port in described voltage identification unit acquisition testing unit, and recognition result is input to display unit shows.
2. the automatic recognition system of a kind of vehicle switch on-off function according to claim 1, is characterized in that: described every bar branch road comprises the resistance of two series connection, and detection port is arranged between the resistance of described two series connection.
3. the automatic recognition system of a kind of vehicle switch on-off function according to claim 1, is characterized in that: selected by described voltage identification unit, the model of chip is MC9S08DZ60MLH.
4. the automatic recognition system of a kind of vehicle switch on-off function according to claim 1, is characterized in that: the model of chip selected by described display unit is Usart GPU 26ATP.
5. adopt the automatic recognition system of a kind of vehicle switch on-off function described in any one of claim 1 ~ 4 to realize knowing a method for distinguishing, it is characterized in that: comprise the following steps:
(1) the good detecting unit of exact connect ion, voltage identification unit and display unit, each detection port correspondence of detecting unit is connected to each data acquisition port of voltage identification unit, and the display data output of voltage identification unit is connected to the data input port of display unit;
(2) each pin correspondence of vehicle switch to be measured is linked in the detection port of detecting unit;
(3) closed vehicle switch to be measured, detection port identical for voltage is judged as the pin of vehicle switch to be measured by voltage identification unit, obtains the current break-make information of vehicle switch to be measured;
(4) the break-make information of the current break-make information of vehicle switch to be measured and the original design of vehicle switch to be measured is compared, if unanimously, then illustrate that the function of this vehicle switch to be measured is normal, otherwise then illustrate that the function of this vehicle switch to be measured is abnormal.
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| CN112034333A (en) * | 2020-07-28 | 2020-12-04 | 北汽福田汽车股份有限公司 | High-voltage relay diagnosis method and device |
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|---|---|
| CN104991186B (en) | 2017-09-26 |
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Address after: 625000 No. 1 Chuangye Road, Caoba Town, Yucheng District, Ya'an City, Sichuan Province Patentee after: Ya'an Xiaohang Electric Appliances Co.,Ltd. Address before: Yucheng View Road East of Ya'an city in Sichuan province 625000 No. 19 Patentee before: YA'AN XIAOHANG ELECTRONIC Co.,Ltd. |
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